Skiving-machine.



A. M. ALEXANDER. SKIVING MACHINE.

APPLICATION FILED IAN-25, I9I5- 1 3 98,507. lmentedse t. 19,1916.

23572 cava-i. lkvezziaz" UNITED snares ALEXANDER M. ALEXANDER, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINELHY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

SKIVING-MACHINE.

Patented Sept. 19, 1916.

Original application filed November 3, 1913, Serial No. 798,935. Divided and this application filed January To all "whom it may concern Be it known that I, ALEXANDER M. Annxand exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to skiving machines and is a division of the application of Alexander, Serial No. 798,935, filed November 3, 1913.

The object of the present invention is to provide an improved form of skiving knife in which the knife blade may be readily adjusted by the operator and clamped firmly in position to present a true cutting edge when the knife is in operation.

lVith this object in view the several features of the invention consist in certain novel features of construction, combinations and arrangements of parts hereinafter de scribed and claimed, the advantages of which will be apparent to those skilled in the art from the following description.

In the accompanying drawing is illustrated an elevation of a skiving machine embodying the improved form of skiving knife and showing the knife and adjustm in longitudinal section. .e machine shown in the illustrated ment of the invention the work is supported and fed to a cylindrical skiving knife 1 by a feed roll 2 arranged below the knife and having a curved periphery corresponding to the curvature of the knife edge. The lower edge of the knife is arranged to travel over the center of the feed roll and the knife is mounted to rotate about an axis which is inclined upwardly in the direction of the feed in order that there shall be adequate clearance between the periphery of the roll and .he beveled surface of the knife directly back of the cutting edge. The work is engaged above the feed roll by a feed disk 3 which cooperates in feeding the work and the edge portion to Serial No. 4,335.

bodily to accommodate variations in the thickness of the stock: The above construction is shown and described clearly in the application above referred to, and of which the present application is a division.

it is desirable that the skiving knife may be readily adjusted to maintain the cutting edge in operative relation to the work as the edge is ground away and that the knife blade may be firmly clamped in position to present a. substantially true cylindrical cutting edge during the operation of the machine. To this end the knife is supported upon a hollow shaft and. the knife blade'is mounted upon a carrier operatively connected to an adjusting rod which extends through the hollow shaft into a position conveniently accessible to the operator in order that the blade may be readily adjusted axially without dismantling the knife. The knife blade is clamped against the inner surface of the knife holder by a clamping disk which is actuated by a clamping rod extending through the knife shaft and having an actuating member connected to its opposite end by which the rod may be moved in the direction of its length.v to clamp the blade against the holder. 4

In the illustrated embodiment of the invention cylindrical knife blade 6 is secured upon an adjusting ring or carrier 7 and is clamped against an external holder 8 having a true cylindrical blade engaging surface. The holder 8 is'secu'red to a flange 9 formed upon a knife shaft 10 by a plurality of bolts 12 which have elongated ends projecting through holes formed in the adjusting ring 7 to lock the adjusting ring and knife holder against rotation relative, to one another. The adjusting ring 7 threadedly engages with the end of an adjusting rod 14 mounted in the hollow knife shaft 10, thus causing a rotation of the adthe machine. and a corresponding slot 16 formed in the knife holder to lock the holder against rotation, and rotating the adjusting rod through a hand wheel 18 keyed to the opposite end of the adjusting rod, as shown clearly in the drawing. The knife blade is clamped in any adjusted position by a resilient clamping disk 20 supported upon the end of the adjusting rod lland engaged by an actuating member 21 which is secured to the end of a rod 2-2 supported in-the hollow adjusting rod 14. The rod 22 is moved in the direction of its length to cause the head 21 to engage with and expanel the clamping disk 20 by a hand wheel 24 threadedly engaging with the opposite end of the rod, as shown clearly in the draw- .ing lVith this construction, upon rotating the hand wheel 1n the proper direction the head 21 forces the clamping disk 20 rearwardly, causing the periphery to move outwardly and clamp the knife blade firmly against the holder.

The hand wheel 18 is provided with a belt receiving pulley 2C and with a conical surface 2'? adapted to engage with the end of the knife shaft 10, and with this construc tion upon acti'zating the hand wheel 24 to clamp the knife blade to the holder the knife shaft 10 and drive pulley 26 are also locked against rotation relative to one another. The knife shaft is journaled in a rearwardly inclined bearing bushing which is supported in a rerticallv" adjustable head 3 guided in Ways and conveniently adjust ed through an adjusting screw 33 to bring the lower edge of the knife in proper relation to the feed roll. The drive pulley 26 is conveniently dr ven from a pulley 35 mounted upon the main drive shaft through a connecting belt 36 which passes over suitable guide 'iulleys.

The knife blade is conveniently adjusted by first releasing the clamping disk through the hand wheel 24 and next rotating the hand Wheel 18 after the knife holder has been lOL'lfi l in position to move the knife blade the desired distance. Vl hen the knife blade has been adjusted to the proper degree the clamping wheel. 2-1- is actuated to clamp the knife blade in position and lock the drive pulley to the drive shaft 10. With this construction it will be noted that the mechanism for adjusting the knife blade and for clamping the knife blade in adjusted position is supported at the opposite end of the knife shaft from the skiving knife and is operativcly connected to the knife by connections shaft.

ll hile it preferred to en'iploy the specific construction and. at" ingrement of parts shown and 'i' 1aill be understood 5- tnis passing through the hollow knife 'carrier, a-knife blade secured to the carrier,

means for clamping the knife blade to the holder, adjusting mechanismsupported at the opposite end of the shaft for adjusting the blade carrier, and connections supported inside of the shaft for operatively connecting the adjusting mechanism and blade carrier. I

2. A skiving knife, having in combination,

a hollow knife shaft, a knife blade holder supported upon one end of the shaft, a knife blade, means for clamping the knife blade to the holder; :1 rod passing through the shaft and operatively connected to the clamping means at one end, and a hand wheel connected to the opposite end of the rod for moving the rod in the direction of .its length to clamp the blade to the holder.

3. A skiving knife, l Wing in combination, a knife shaft, a knife blade holder secured to the shaft, a knife blade supported Within the holder, means for clamping the blade to the holder, a rod, a-clalnping headconnected to the rod, and means for moving the rod axially to clamp the blade to the holder.

4. A skiving knife, having in combination, a knife blade holder. a knife shaft support ing the holder, a knife blade, a-rod extend ing through the knife shaft and projecting from the shaft at opposite ends, means operatively connected'to one end of the rod to clamp the blade to the knife holder, and means located upon the opposite end of the rod for moving the rod in a lengthwise direction. A

A skiving knife, having in combination, a knife shaft, a knife blade holder secured to one end of the shaft, a bladeadjusting ring, a knife blade secured to the ring, means for clamping the knife blade to the holder,v an adjusting rod passing through the knife shaft and connected at one end w ith the ring, a handwheel mounted upon the opposite end of the rod, and means for 'loeking the hand wheel to the adjusting rod.

(3. A skiving knife, having in combination, a hollow knife shaft,"a holder secured to the shaft, a knife blade supported Within the holder, means for adjusting the knife blade, means for clamping the knife blade to the holder, and operative connections for the adjusting and clamping "means passing through the hollow knife shaft. 7. A skiving kiiifefinwinp,- in combination, a l'lOllOW knife shaft, a knife blade holder secured to the shaft, a knife blade supported Within the holder, blade adjusting ring anda clamping disk at one end of the knife shaft, adjusting and clamping; rods passing through'the knife shaft and opera-Lively connected to the adjusting ring and clamping disk, respectively, and means supported at the opposite end of the knife shaft for actuating the adjusting and clamping rods.

8. A skiving knife, having in combination. a knife shaft, a knife blade holder supported 10 on one end of the shaft, a knife blade, means for clamping the knife blade to the holder, mechanism. for adjusting the knife blade relative to the holder, and means at the op posite end of the knife shaft for operating the adjusting mechanism.

ALEXANDER M. ALEXANDER.

\Vitnesses CnEsTEn E. ROGERS, ABBIE L. FREAK. 

